Loose-leaf binder



Oct. 15, 1940. E. F. BUENGER LOOSE-LEAF BINDER 2 Sheeis-Sheefl Filed March 1, 1939 Lia/B468 BY INVENTOR ATTORNEY.

Oct. 15, 1940.

LOOSE-LEAF BINDER Filed March 1, 19:59 2 Sheets-Sheet 2 11 lam/ d ZEZZZVENT%% Z2 2 -AITATOBNEK- E. F. BUENGE'B 2,218,307

Patented Oct. 15, 1940 UNITE. STATES LOOSE-LEAF BINDER Edward F. Buenger, Oak Park, Ill., assignor to Wilson-Jones Company, Chicago, 111., a corporation of Massachusetts Application March 1,

Claims.

This invention relates to a loose-leaf binder and more particularly to a binder having a concealed metal hinge.

It is an object of this invention to provide 5 means for covering the metal hinge of a looseleaf binder to prevent scratching or marring of furniture upon which the binder may be handled. It is a further object of this invention to provide simple and efficient means for securing flaps extending from the covers to the binder back. Other objects of this invention will become apparent upon reading the following description, taken in conjunction with the accompanying drawings, in which Figure 1 is a fragmentary perspective view of various parts of my improved binder in dis assembled position;

Figure 2 is a perspective view of the binder in closed position;

Figure 3 is a cross sectional view taken through one of the flap retaining members; and

Figure 4 is a fragmentary cross sectional view of the binder showing the fiap retaining member in elevation.

In the drawings, the reference numeral 2 indicates a rounded back member along the opposite longitudinal edges of which a pair of strips 3 iswelded or riveted. The strips 3 are provided with a plurality of hinge lugs 4 spaced along the inner edge of each strip in pairs. A link 5 having its opposite edges curled to form hinge lugs 6 and 1 is positioned between each pair of hinge lugs i and is pivotally secured thereto by means of hinge v pintles 8 which pass through the hinge lugs 4 and 6. Each link 5 is provided with a prong or tine 9 for a purpose to be hereinafter described. A strip H] of leather, fabric, or any other suitable material, is positioned over the outer surface of the rounded back member 2 and projects beyond the longitudinal edges thereof so that it can be folded over on the strip 3 and extend under the links 5 so as to be engaged by the prongs 9.

A cover member I! is adapted to be secured to the back member by means of a hinge plate I2 secured to the cover and providing a plurality of hinge lugs l3 adapted to be alined with the hinge lugs l. The sheet retaining mechanism, which is not shown in detail because it is conventional structure, includes a flat back member I4 having hinge lugs l5 adapted to be alined with the hinge lugs I and I3 to receive a hinge pintle 16. The flat back It is provided along its longitudinal edges with a pair of sheaths I! which are notched, as indicatedat l1, so that pintles I8, slidably secured in said sheaths, may engage posts 1939, Serial No. 259,149

J9, upon which sheets 20 are impaled, said sheets in the binder.

The outer surface of the cover II is covered with a sheet 22 of material harmonizing with the strip Ill. A flap 23 of similar material is secured to the cover and projects from its hinge edge. In assembling the binder the links 5 are swung inv wardly around the hinge 8 and the edges of the strip it and the flaps 23 are positioned over the strips 3. The links 5 are then swung outwardly around the hinge 8 so as to position the links 5 over the edges of the strip 10 and the flaps 23. The fiat back member I4 is then positioned over the rounded back member 2 and the links 5 to align the hinge lugs I5 with the hinge lugs I and E3. The pressure of the edges of the fiat back member H! adjacent the hinge lugs I5 against the links 5 causes the prongs 9 to dig into the edge of the strip 10 and the flap 23, as shown in Figure 3. The strips 3 are apertured, as indicated at 3', in alinement with the prongs 9 to make the engagement of the prongs with the edge of the strip I0 and the fiap 23 more secure. When the hinge pintles l6 are inserted into the hinge lugs I, I3 and [5 the parts are securely held together, and the hinges are neatly covered by the flaps 23 so that an attractive appearance is attained and the hinges cannot scratch or mar any furniture upon which the binder may be handled.

Although I have described one embodiment of my invention in detail, it will be understood that the description thereof is illustrative, rather than restrictive, as many details may be modified or changed without departing from the spirit or scope of the invention. Accordingly, I do not desire to be restricted to the exact details of construction described, except as limited by the appended claims.

I claim:

1. In a loose-leaf binder, a back member, a plurality of hinge lugs rigidly secured to said back member, a plurality of links pivoted to said hinge lugs, and a cover member secured to said links.

2. In a loose-leaf binder, a back member, a plurality of links pivotally secured to the inner surface of said back member, a cover member hinged to said links, and a flap extending from said cover member and secured between said links and said back member.

3. In a loose-leaf binder, a back member, a plurality of links secured to said back member, a cover member hingedly secured to said links, a flap projecting from said cover member to cover said hinge, and means on said links for'engaging S i flap to hold it over said hinge.

to retain 10 5. In a loose-leaf binder, a flat back member,

a cover member, said flat back member and said cover member being provided with a plurality of alined hinge lugs, a hinge pintle passing through said hinge lugs to secure said cover member and said fiat back member together, and a plurality of links mounted on said hinge, said links being adapted to secure a rounded back member to said flat back member and said cover.

EDWARD F. BUENGER. 

